kvm on amd64 - >6G?

[Stef]

Barry Boes wrote:
> I could apply such a patch to my servers, but there are two disadvantages :
>   o who wants to apply kernel patches to mission critical servers? Isn't
>      that a linux thing (joke!) 

Unfortunately it's not. There's a whole raft of patches (with PR's
filed) that are required when you're using certain configurations of
FreeBSD.

In particular my 6.3 production servers require:

 * A bunch of patches to ataraid to prevent panics, make the
   raid work during failures etc... Many can be found here:

   http://wiki.freebsd.org/JeremyChadwick/ATA_issues_and_troubleshooting


 * Patch to the 4BSD scheduler to prevent regular deadlocks on all
   quad core systems I have access to:

   http://www.mail-archive.com/freebsd-hackers@freebsd.org/msg64390.html


 * Patch for fixing devfs to have proper behavior with symlinks
   in jails:

   http://www.freebsd.org/cgi/query-pr.cgi?pr=114057


And there are one or two other patches on some deployed systems (eg:
'multi ip jail patches'). I used to be in the
no-patches-on-my-production-servers camp, but I've found that it was
unrealistic and resulted in less stable systems.


Cheers,

Stef Walter